usb/serial/mct_u232.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
3  * Definitions for MCT (Magic Control Technology) USB-RS232 Converter Driver
7  * This driver is for the device MCT USB-RS232 Converter (25 pin, Model No.
8  * U232-P25) from Magic Control Technology Corp. (there is also a 9 pin
9  * Model No. U232-P9). See http://www.mct.com.tw/products/product_us232.html
11  * of this file. This device was used in the Dlink DSB-S25.
24 /* U232-P25, Sitecom */
27 /* DU-H3SP USB BAY hub */
28 #define MCT_U232_DU_H3SP_PID		0x0200	/* D-Link DU-H3SP USB BAY */
30 /* Belkin badge the MCT U232-P9 as the F5U109 */
63  * the MCT-supplied Windows driver whenever the baud rate changes.
144 /* -----------------------------------------------------------------------------
149  *  and the vendor-supplied device driver (version 2.3A) under Windows98. To
150  *  identify the USB vendor-specific requests and to assign them to terminal
153  *  Win98 "HyperTerminal" and "usb-robot" on Linux for testing. The results and
163  * -------------------
174  *   MCT-supplied Windows98 driver (U2SPORT.VXD, "File version: 1.21P.0104 for
175  *   Win98/Me"), show this request has a length of 1 byte, presumably because
176  *   of the fact that the Belkin adapter and the 'Sitecom U232-P25' adapter
177  *   use a baud-rate code instead of a conventional RS-232 baud rate divisor.
183  * ---------------------------
194  *	   (IER) is disabled. Any access to these ports is now redirected to the
208  *  Bit 2: Number of Stop Bits (STB). If set to "1" and using 5-bit data words,
209  *	   1.5 Stop Bits are transmitted and expected in each data word. For
210  *	   6, 7 and 8-bit data words, 2 Stop Bits are transmitted and expected.
211  *	   When this bit is set to "0", one Stop Bit is used on each data word.
212  *  Bit 1: Word Length Select Bit #1 (WLSB1)
213  *  Bit 0: Word Length Select Bit #0 (WLSB0)
214  *	   Together these bits specify the number of bits in each data word.
215  *	     1 0  Word Length
228  * ----------------------------
240  *  Bit 4: Loop-Back Enable. When set to "1", the UART transmitter and receiver
247  *	   to tri-state (disable) the interrupt signal from the
251  *  Bit 1: Request to Send (RTS). When set to "1", the output of the UART -RTS
254  *	   -DTR line is Low (Active).
261  * ---------------------------
275  *  Bit 3: Delta Data Carrier Detect (DDCD). Set to "1" if the -DCD line has
278  *  Bit 2: Trailing Edge Ring Indicator (TERI). Set to "1" if the -RI line has
281  *  Bit 1: Delta Data Set Ready (DDSR). Set to "1" if the -DSR line has changed
284  *  Bit 0: Delta Clear To Send (DCTS). Set to "1" if the -CTS line has changed
289  *  interrupt-in endpoint 0x83 to signal changes of modem status lines. The USB
294  * --------------------------
304  *	    word to transmit. The transmitter may still be transmitting when
308  *	    not appear at the expected time. The received word is probably
310  *  Bit 2   Parity Error (PE). The parity bit was incorrect for the word
312  *  Bit 1   Overrun Error (OE). A new word was received and there was no room
313  *	    in the receive buffer. The newly-arrived word in the shift register
314  *	    is discarded. On 8250/16450 UARTs, the word in the holding register
315  *	    is discarded and the newly- arrived word is put in the holding
318  *	    host may read. A word must be completely received and moved from
323  *  interrupt-in endpoint 0x83 to signal error conditions. Such errors have
328  * -------------------
337  *   SniffUSB observations (Nov 2003): With the MCT-supplied Windows98 driver
345  * -------------------
354  *   SniffUSB observations (Nov 2003): With the MCT-supplied Windows98 driver
358  *   any) this message might serve, but without it, the USB/RS-232 adapter
359  *   will not write to RS-232 devices which do not assert the 'CTS' signal.
363  * ------------
371  * --------------
373  *  SniffUSB observations: the bulk-out endpoint 0x1 and interrupt-in endpoint
374  *  0x81 is used to transmit and receive characters. The second interrupt-in
380  * ------------------
386  * -----------------------------------------------------------------
389  *  Product: USB-232 Interfact Controller
392  *    Length              = 18
400  *      Per-interface classes
444  * -----------------------------------------------------------------
447  * adaptor, which turns out to simply be a re-badged U232-P9.  We
449  * which says "U232-P9" ;-)